Nootroo Gold & Silver is our premium nootropic stack based on the continued research into nootropics over the last 50 years. The Gold and Silver Formulas each have a different main, next-generation nootropic paired with the precursor for the memory neurotransmitter. The Gold Formula contains Noopept and Citicoline (Cognizin) and the Silver Formula contains Phenylpiracetam and Citicoline (Cognizin). Each bottle contains 30 total pills, with 15 of the Gold Formula and 15 of the Silver Formula and can be distinguished by their non-artifically colored capsules. We are now shipping our 5.0 version of Nootroo Gold & Silver Formulas.